<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 作用: 给表单元素使用,双向数据绑定->可以快速获取或者设置表单元素内容 -->
    <!-- 让数据和视图实现双向绑定
        1.数据变化,视图自动更新
        2.视图变数,数据自动更新
    -->
    <div id="app">
        账户: <input type="text" v-model="username" name="" id=""> <br>
        用户名: <input type="password" v-model="password" name="" id=""> <br>
        <button @click="login">登录</button>
        <button v-on:click="reset">重置</button>

    </div>
    <script src="./vue.js"></script>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                username: '12345',
                password: 'xxx',
            },
            methods: {
                login (){
                    alert(this.username)
                },
                reset (){
                    this.username = '',
                    this.password = ''
                }
            }
        })
    </script>
</body>
</html>